Triton Sidescan Manual do Utilizador Página 1

Perspective-SS -- Sidescan Processing Guide -- Software Version 7.6 By: Tony M. Ramirez September, 2014

Page 7 3. If the file includes both amplitude and depth information, then the bottom track can be automatically extracted from the bathy nadir

Page 8 4.3 TVG Adjustments Many modern sidescan sonars already account for TVG during acquisition and no adjustments are required. However, whe

Page 9 Below is the same example from the previous page but with the TVG manually adjusted: Comparing the image above with the one on the pre

Page 10 Below is the same example again but with the TVG automatically adjusted: It is interesting to note that the curve is similar to the one

Page 11 5.0 Process 5.1 Sidescan Mosaic Wizard Once the navigation has been processed, the bottom track verified, and a TVG curve has been creat

Page 12 5.1.2 Choose Mosaic Settings Settings pertaining to assembling the sidescan mosaic are located on page 2 of the processing wizard. An o

Page 13 5.1.3 Select/Order Input Lines This page allows the user to select which lines to include in the processing as shown below. Note that t

Page 14 5.1.5 Line and Channel Settings This page of the wizard is for settings that apply on the individual survey lines before they are assemb

Page 15 o Include Adjacent Cells - uses the values in adjacent cells to calculate value of filled cell. o Non-Zero Shadow - fills sidescan shado

Page 16 5.1.6 Corrections and Filters The last page of the sidescan processing wizard is for correcting position and gain loss in the mosaic.

Page ii © 2014 TRITON This user guide is provided as a means to become familiar with TRITON’s software through an explanation

Page 17  Pitch Corrections This option uses the 'pitch' value in the motion data (if available) to apply along track position correc

Page 18 5.2 Re-merge Mosaic After the mosaic is created, it is possible to make a few changes and have those changes incorporated into the mosai

Page 19 5.3 Other Processing Options Presented here are a few optional processing tools: 5.3.1 Navigation Processing The sidescan processing wiz

Page 20 6.0 Enhance There are two primary options for enhancing the appearance of the sidescan mosaics in Perspective. These are adjustments to

Page 21 Selecting the Histogram menu option will open the window below. The histogram and image on the left have the default histogram while th

Page 22 7.0 Interpret To assist with interpretation of the sidescan data Perspective has many added features and toolsets. This section briefly

Page 23 The sidescan waterfall accesses the raw XTF data and therefore preserves the raw data quality. It can be launched by double-clicking on

Page 24 8.0 Export There are two primary exports for sidescan mosaics from Perspective. The main export is to a GeoTiff, but it is also possibl

Page 25 9.0 Workflow Step 1 - Launch Perspective: Start application and open project or start new project Step 2 - Check Settings: Verify maxim

Page iii Table of Contents 1.0 Introduction ... 1

Page 1 1.0 Introduction This document presents a sample workflow for processing sidescan data using Triton’s Perspective software. Also covered

Page 2 3.0 Import 3.1 File Import To get started, the raw sidescan data files need to be imported into Perspective using the Raw Data File optio

Page 3 If the projection used for the raw data files is not present in the standard lists, select the Custom button to either manually enter the

Page 4 3.4 Import Processing Option In the Program Settings, there is an option to launch the processing wizards upon importing raw data. If th

Page 5 As the waterfall scrolls, the position in the map view updates to show the current location of the waterfall display. The other option t

Page 6 4.2 Bottom Tracking To the right is an example of the waterfall view showing sidescan data collected using a Klein 5000 sonar. The red l